Great Plains
| 118-732M | 4/4/19
38
1510P & 1520P
Adjustments
Checking Volumetric Seeding Rate
The seed charts are based on cleaned seed and 9.5L x
15, rib implement tires. Factors including foreign
material, seed treatment, seed size, seed weight, field
conditions and tire pressure will affect seeding rate. Set
and check the seeding rate, then readjust the rate as
necessary.
1.
Record the weight of an empty container large
enough to hold seed metered from three meters for
one acre.
2.
Place several pounds of seed over three seed
meters on an outside end of the drill box.
NOTE: If drill box is full, shut off sliding seed tubes to
all but three meters on an outside end.
3.
Raise drill off ground.
4.
Turn gauge wheel a few turns to fill meters with
seed and until seed drops to ground from all three
openers.
5.
Place a container under the three openers to gather
seed as it is metered.
6.
Using the chart on the right, select your row
spacing and determine the correct number of
revolutions per acre. Turn drive gauge wheel the
selected revolutions for your row spacing. Check in
box to make sure seed tubes have plenty of seed
covering them.
7.
Weigh measured seed. Subtract initial weight of
empty container. Divide by three for the amount
metered by each meter, then multiply by the
number of drill openers for the pounds-per-acre
seeding rate.
8.
If seeding rate is different than desired:
•
Double check transmission sprocket and drive
range sprocket combinations.
•
Check for meter malfunction.
•
Check for correct seed meter wheel.
•
Check that all three rows are getting seed.
•
Refer to
Troubleshooting
on page 50.
9.
Readjust transmission and/or range sprockets and
repeat test.
Planted Row
Spacing (Inches)
Number of
Rows
Tire
Revolutions
per Acre for
15ft drills
7.5”
24
365
10”
18
365
10”
19
346
15”
12
365
15”
13
337
20”
9
365
20”
10
329
30”
6
365
Twin Row 30”
12
365
Equations for calibrating volumetric seeding rate:
measured seed empty container
–
3 (number of meters measured)
------------------------------------------------------------------------------------------
pounds per meter
=
pounds per meter number of openers
pounds per acre
=
Содержание 1510P
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